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Tag: virtualization

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Ivan Ischenko
  • Ivan Ischenko
  • April 17, 2025

What is Copy-on-Write? A Detailed Overview

Copy-on-Write changes the game by eliminating unnecessary duplication. Need to clone a VM? Snapshot a database? CoW handles it all – efficiently. Explore from our latest article, how this simple concept leads to huge savings in time, storage, and performance.
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Alex Khorolets
  • Alex Khorolets
  • August 15, 2023

What is virtualization? A Deep Dive Guide

It truly seems that you couldn’t possibly find a person today who hasn’t heard of virtualization technology yet. Considering its more efficient use of a physical machine’s resources, there’s no surprise whatsoever as to why it has become an industry standard for enterprise IT architecture. However, are you sure you know all there is to know?
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Andrea Mauro
  • Andrea Mauro
  • February 24, 2017

Design a ROBO infrastructure (Part 2): Design areas and technologies

In the previous post, we have explained and described business requirements and constraints in order to support design and implementation decisions suited for mission-critical applications, considering also how risk can affect design decisions.
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Michael Ryom
  • Michael Ryom
  • February 16, 2017

Setting yourself up for a success with virtualization

I am going to try to address a few issues I have seen quite a lot in my virtualization career. It is not that you have to take extra care when virtualizing, but your virtual environment will never be better than the foundation you build it on. The reason you do not see that many people fuss about it in non-virtualized environments (anymore). I believe, that resources are in abundance today. Well, they were so ten years ago as well, but since then we have only seen higher and higher specification on server hardware. It was the reason for starting to virtualize. Do not get me wrong – Lots of people care about the performance of their virtual and physical environments. Yet some have not set them self up for a successful virtualization project. Let me elaborate…
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Oksana Zybinskaya
  • Oksana Zybinskaya
  • December 26, 2016

The Virtualization Review Editor’s Choice Awards 2016

The Virtualization Review Editor’s Choice is a selection of the most outstanding virtualization products of 2016. It is based on the opinions and overlooks by the trusted experts in the fields of virtualization and cloud computing. This is not the “best of the best rating”. No criteria were applied to make the list. This is just the collection of individual choices of writers, who deal with the industry daily, so they have pointed out virtualization solutions they found especially interesting and useful.
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Anton Kolomyeytsev
  • Anton Kolomyeytsev
  • May 11, 2016

Storage Replica: Overview

Here is an overview dedicated to disaster recovery, more specific, it’s about the DR capabilities of Microsoft Storage Replica – a new feature of Windows Server 2016. It takes a glance on the DR process itself and then brings a few details of the Storage Replica operation, its features, and peculiarities. They include zero data loss, block-level replication, simple deployment and management, guest and host, SMB3 protocol, high security, high performance, consistency groups, user delegation, network constraint, thin provisioning, etc. The post is, basically, an introduction to a series of experiments also listed on the blog. They were conducted in order to check the functionality and performance of Microsoft Storage Replica in different use cases.
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Jon Toigo
  • Jon Toigo
  • April 27, 2016

Manage It Already

As I review the marketing pitches of many software-defined storage products today, I am concerned by the lack of attention in any of the software stack descriptions to any capabilities whatsoever for managing the underlying hardware infrastructure. This strikes me as a huge oversight. The truth is that delivering storage services via software — orchestrating and administering the delivery of capacity, data encryption, data protection and other services to the data that are hosted on a software-defined storage volume – is only half of the challenge of storage administration. The other part is maintaining the health and integrity of the gear and the interconnect cabling that provide the all-important physical underlayment of an increasingly virtualized world.
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Jon Toigo
  • Jon Toigo
  • April 7, 2016

Let’s Get Real About Data Protection and Disaster Recovery

Personally, I am getting rather tired of the dismissive tone adopted by virtualization and cloud vendors when you raise the issue of disaster recovery.  We previously discussed the limited scope of virtual systems clustering and failover:  active-passive and active-active server clusters with data mirroring is generally inadequate for recovery from interruption events that have a footprint larger than a given equipment rack or subnetwork.  Extending mirroring and cluster failover over distances greater than 80 kilometers is a dicey strategy, especially given the impact of latency and jitter on data transport over WAN links, which can create data deltas that can prevent successful application or database recovery altogether.
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